Ceiling fan



FIG. 1 is a bottom perspective view of a ceiling fan, showing the new design;

FIG. 2 is a top perspective view;

FIG. 3 is an elevation view;

FIG. 4 is an elevation view opposite of the elevation view shown in FIG. 3;

FIG. 5 is a top view; and,

FIG. 6 is a bottom view.

The broken line showing of portions of the ceiling fan is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a ceiling fan, as shown and described. 